Exposure
ID
PIONI.2025-10-29T05:19:26.084_1
Header ID
PIONI.2025-10-29T05:19:26.084
Date updated
2025-10-29 05:26:12 UTC+0000
Release date
2026-10-29 05:26:12 UTC+0000
UTC Start
2025-10-29 05:19:26.084
UTC End
2025-10-29 05:20:04.484
MJD Start
60977.2218296817
MJD End
60977.22227412614
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0060374999999999995
Ambient temperature (°C)
13.65
Seeing (arcsec)
0.465
Observation
ID
71040
Category
science
Program ID
116.292S.001
Program Title
CONSTRAINING THE COSMIC DANCE OF MASSIVE STARS IN TRIPLE SYSTEMS
Program Type
Normal
PI / COI
MAHY / SANA / LE BOUQUIN / FROST / BORDIER
Target
ID
52720
Name
40 Tau
RA
60.934742
DEC
5.43559
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 90.5080 90.5080 113.6000 113.6000
A0-J2 126.1610 126.2590 93.9000 93.8000
A0-K0 117.9920 118.1610 73.6440 73.6480
G1-J2 51.1430 51.2260 57.1000 57.2000
G1-K0 75.8190 75.8890 23.5480 23.6490
J2-K0 43.6190 43.5960 343.1280 343.2050
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60977.2218296817
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 40 Tau
RA 60.934742
DEC 5.43559
HIERARCH ESO INS OPTI2 NAME GRISM
HIERARCH ESO INS OPTI2 ID GRISM
HIERARCH ESO INS FILT1 NAME H
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 90.508
HIERARCH ESO ISS PBL12 END 90.508
HIERARCH ESO ISS PBLA12 START 113.6
HIERARCH ESO ISS PBLA12 END 113.6
HIERARCH ESO ISS PBL13 START 126.161
HIERARCH ESO ISS PBL13 END 126.259
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.8
HIERARCH ESO ISS PBL14 START 117.992
HIERARCH ESO ISS PBL14 END 118.161
HIERARCH ESO ISS PBLA14 START 73.644
HIERARCH ESO ISS PBLA14 END 73.648
HIERARCH ESO ISS PBL23 START 51.143
HIERARCH ESO ISS PBL23 END 51.226
HIERARCH ESO ISS PBLA23 START 57.1
HIERARCH ESO ISS PBLA23 END 57.2
HIERARCH ESO ISS PBL24 START 75.819
HIERARCH ESO ISS PBL24 END 75.889
HIERARCH ESO ISS PBLA24 START 23.548
HIERARCH ESO ISS PBLA24 END 23.649
HIERARCH ESO ISS PBL34 START 43.619
HIERARCH ESO ISS PBL34 END 43.596
HIERARCH ESO ISS PBLA34 START 343.128
HIERARCH ESO ISS PBLA34 END 343.205
HIERARCH ESO ISS AMBI TAU0 START 0.006064
HIERARCH ESO ISS AMBI TAU0 END 0.006011
HIERARCH ESO ISS AMBI TEMP 13.65
HIERARCH ESO ISS AMBI FWHM START 0.4
HIERARCH ESO ISS AMBI FWHM END 0.53